"It is important to have the trust and confidence of these two women who have done so much for California and the nation," Baca said in a statement issued by his campaign. "Relationships and seniority mean everything in Congress."

Baca is set to square off against state Sen. Gloria Negrete McLeod, D-Chino for the seat. The 35th, drawn this summer as part of the state's redistricting process, includes Ontario, Chino, Pomona, parts of Fontana and Rialto -- but not Baca's home, which was drawn into a less Democratic-leaning district to the east and north.

There are no prohibitions on running from outside a district, and Baca has repeatedly stressed that he has represented the majority of the 35th during his career.